German shares a great deal of everyday vocabulary with English, which makes learner content easy to follow early. Native speech is harder than it looks because of word order, with the verb often arriving at the end, and the long, compound words, both of which come with hours of listening rather than with rules.

How many hours of German?

Learners who kept count have reported what they could follow at each stage. For an English speaker learning German, roughly:

1. 75 hoursSlow, simple speech made for learners
2. 200 hoursLearner videos at normal speed
3. 400 hoursEasy native videos on familiar topics
4. 750 hoursMost everyday native speech, with effort
5. 1,250 hoursNative content feels comfortable
6. 1,900 hoursNearly everything, even fast speech

Based on the Dreaming Spanish roadmap. German is in group 2 of 4 in the US Foreign Service Institute's ranking of how long languages take an English speaker to learn: a little further from English than French or Spanish. So the landmarks are raised by a quarter. If you already speak a language close to German, expect to need fewer. How many hours you really need.

How Serval recognises German

Serval listens to short windows of each video's sound, up to thirty seconds at a time, and a small model on your own computer names the language. No audio is kept or sent anywhere. German is one of the 28 languages we measured against real recordings, and every one was labelled correctly. A label is only shown once two independent checks agree; when the audio is not clear enough, the video's time is not counted rather than guessed.

You never have to tell Serval you are learning German. You only mark the languages you already speak, and everything else counts, so you can learn German alongside another language and see each one's hours separately.

Finding German to listen to

Search YouTube for Deutsch, German's name for itself, together with a topic you already enjoy: cooking, games, news, travel. Native speakers searching in their own language find content that searches in English miss. Early on, look for videos made for learners, with slow speech and lots of pictures, and move to native videos as they get easier; the hour landmarks above tell you roughly when.

German is written in the Latin alphabet. Serval goes by sound, not subtitles, so it counts the same whether you turn captions on or not.

Close relatives

German belongs to the West Germanic group. Serval also identifies Afrikaans, Dutch, English, Luxembourgish, Scots and Yiddish.

Questions

Does Serval work for German?

Yes. Serval identifies German from a video's audio, on your own computer, and counts the time you spend listening to it on YouTube, Twitch, Netflix and six more sites. German is one of the 28 languages it was measured on against real recordings, all labelled correctly. You do not have to tell it you are learning German; it works that out by listening.

How many hours does it take to understand German?

As a rough guide for an English speaker, about 400 hours of listening for easy native videos on familiar topics, and about 1,250 for native content to feel comfortable. It varies from person to person, and a language close to one you already speak goes faster.

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